DE102018218055A1 - Semiconductor chip and power module and its manufacturing method - Google Patents
Semiconductor chip and power module and its manufacturing method Download PDFInfo
- Publication number
- DE102018218055A1 DE102018218055A1 DE102018218055.5A DE102018218055A DE102018218055A1 DE 102018218055 A1 DE102018218055 A1 DE 102018218055A1 DE 102018218055 A DE102018218055 A DE 102018218055A DE 102018218055 A1 DE102018218055 A1 DE 102018218055A1
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- semiconductor chip
- alloy film
- electrode
- power module
- end surface
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Abstract
Ein Halbleiter-Chip enthält ein Halbleitersubstrat aus SiC, eine Stirnflächenelektrode, die an einer Hauptfläche des Halbleitersubstrats ausgebildet ist, und eine Rückflächenelektrode (eine Drain-Elektrode), die an einer Rückfläche des Halbleitersubstrats ausgebildet ist. Die Stirnflächenelektrode ist an einen Draht gebondet und enthält einen Al-Legierungs-Film, der ein Metall mit hohem Schmelzpunkt enthält. Der Al-Legierungs-Film enthält einen säulenförmigen Al-Kristall, der sich entlang einer Dickenrichtung des Al-Legierungs-Films erstreckt, wobei darin eine intermetallische Verbindung abgeschieden ist.A semiconductor chip includes a semiconductor substrate of SiC, an end surface electrode formed on a main surface of the semiconductor substrate, and a back surface electrode (a drain electrode) formed on a back surface of the semiconductor substrate. The end surface electrode is bonded to a wire and contains an Al alloy film containing a high melting point metal. The Al alloy film includes a columnar Al crystal extending along a thickness direction of the Al alloy film with an intermetallic compound deposited therein.
Description
HINTERGRUND DER ERFINDUNGBACKGROUND OF THE INVENTION
Gebiet der ErfindungField of the invention
Die vorliegende Erfindung bezieht sich auf einen Halbleiterchip, der einen Hochtemperaturbetrieb ermöglicht, ein Leistungsmodul und ein Verfahren zum Herstellen des Leistungsmoduls.The present invention relates to a semiconductor chip enabling high-temperature operation, a power module, and a method of manufacturing the power module.
Beschreibung des Standes der TechnikDescription of the Prior Art
In den letzten Jahren hat sich eine Entwicklung eines Halbleiters mit breitem Bandabstand, wie z. B. SiC, der einen Hochtemperaturbetrieb ermöglicht, beschleunigt. Während ein Si-Halbleiter-Chip (Silicium-Halbleiter-Chip) eine obere Grenze von 150 bis 175 °C einer Betriebstemperatur aufweist, wird in Betracht gezogen, dass ein SiC-Halbleiter-Chip bei 175 °C oder mehr betrieben wird.In recent years, a development of a wide bandgap semiconductor, such as, for example, has become popular. B. SiC, which allows a high-temperature operation, accelerated. While an Si semiconductor chip (silicon semiconductor chip) has an upper limit of 150 to 175 ° C of an operating temperature, it is considered that a SiC semiconductor chip is operated at 175 ° C or more.
Wenn eine Umgebungstemperatur bei der Verwendung hoch wird, ist es notwendig, eine Bondleistung zwischen einer Stirnflächenelektrode des Halbleiter-Chips und einem Draht und einen Wärmewiderstand der den Halbleiter-Chip umgebenden Elemente zu berücksichtigen.When an ambient temperature becomes high in use, it is necessary to consider a bonding performance between an end surface electrode of the semiconductor chip and a wire and a thermal resistance of the elements surrounding the semiconductor chip.
Ferner offenbart
Zusätzlich offenbart
Zusätzlich offenbaren
ZUSAMMENFASSUNG DER ERFINDUNGSUMMARY OF THE INVENTION
Beispielsweise ist es in der Struktur zum Bonden eines Al-Drahtes an die Stirnflächenelektrode des Halbleiter-Chips notwendig, eine mechanische Festigkeit sowohl des Al-Drahtes als auch der Stirnflächenelektrode des Halbleiter-Chips zu erhöhen, um die Bondfestigkeit zu verbessern. Um die mechanische Festigkeit des Al-Drahtes zu erhöhen, wird ein hochfester Al-Draht vorgeschlagen, in den ein Werkstoff mit hohem Schmelzpunkt gemischt ist.For example, in the structure for bonding an Al wire to the end surface electrode of the semiconductor chip, it is necessary to increase a mechanical strength of both the Al wire and the end surface electrode of the semiconductor chip to improve the bonding strength. In order to increase the mechanical strength of the Al wire, a high-strength Al wire in which a high melting point material is mixed is proposed.
Falls jedoch die Festigkeit der Stirnflächenelektrode des Halbleiter-Chips unzureichend ist, wird im Ergebnis der Bondabschnitt der Stirnflächenelektrode des Drahtes beansprucht, wenn die Leistungszyklusbewertung implementiert ist, wobei ein kleiner Riss auftritt. Wenn sich der Riss entlang dem Bondabschnitt entwickelt, sind die Lebensdauern des Halbleiter-Chips und eines Leistungsmoduls verringert.However, if the strength of the end surface electrode of the semiconductor chip is insufficient, as a result, the bonding portion of the end surface electrode of the wire is stressed when the power cycle evaluation is implemented, whereby a small crack occurs. As the crack develops along the bonding portion, the lifetimes of the semiconductor chip and a power module are reduced.
Es ist eine Aufgabe der Erfindung, eine Technik zu schaffen, die die Lebensdauern des Halbleiter-Chips und des Leistungsmoduls in einer Leistungszyklusbewertung durch das Vergrößern der Festigkeit der Elektrode verlängern können.It is an object of the invention to provide a technique that can extend the lifetimes of the semiconductor chip and the power module in a performance cycle evaluation by increasing the strength of the electrode.
Weitere Aufgaben und neuartige Eigenschaften neben der obigen Beschreibung dieser Offenbarung werden durch die Erklärung und die beigefügten Zeichnungen dieser Beschreibung offensichtlich.Other objects and novel features besides the above description of this disclosure will become apparent from the explanation and the accompanying drawings of this specification.
In der in dieser Anmeldung offenbarten Erfindung werden die repräsentativen Überblicke wie im Folgenden einfach beschrieben.In the invention disclosed in this application, the representative overviews will be described simply as follows.
Ein Halbleiter-Chip gemäß einer Ausführungsform enthält ein Halbleitersubstrat und eine Stirnflächenelektrode, die an einer Hauptfläche des Halbleitersubstrats ausgebildet ist, wobei die Stirnflächenelektrode einen Al-Legierungs-Film enthält, der ein Metall mit hohem Schmelzpunkt enthält, wobei der Al-Legierungs-Film einen säulenförmigen Al-Kristall entlang einer Dickenrichtung des Al-Legierungs-Films enthält.A semiconductor chip according to an embodiment includes a semiconductor substrate and an end surface electrode formed on a main surface of the semiconductor substrate, the end surface electrode including an Al alloy film containing a high melting point metal, the Al alloy film having a columnar Al crystal along a thickness direction of the Al alloy film.
Zusätzlich enthält ein Leistungsmodul gemäß einer Ausführungsform einen Halbleiter-Chip, der eine Hauptfläche und eine Rückfläche enthält und mit der Stirnflächenelektrode versehen ist, die an der Hauptfläche ausgebildet ist, das Substrat, das den Halbleiter-Chip stützt und einen Verdrahtungsabschnitt enthält, und ein leitfähiges Element, das die Stirnflächenelektrode des Halbleiter-Chips und den Verdrahtungsabschnitt des Substrats elektrisch verbindet. Ferner enthält die Stirnflächenelektrode des Halbleiter-Chips einen Al-Legierungs-Film, der ein Metall mit hohem Schmelzpunkt enthält. Der Al-Legierungs-Film enthält einen säulenförmigen Al-Kristall, der sich entlang einer Dickenrichtung des AI-Legierungs-Films erstreckt.In addition, a power module according to an embodiment includes a semiconductor chip including a main surface and a back surface and provided with the end surface electrode formed on the main surface, the substrate supporting the semiconductor chip and including a wiring portion, and a conductive one A member that electrically connects the end surface electrode of the semiconductor chip and the wiring portion of the substrate. Further, the end surface electrode of the semiconductor chip includes an Al alloy film containing a high melting point metal. The Al alloy film includes a columnar Al crystal extending along a thickness direction of the Al alloy film.
Zusätzlich enthält ein Herstellungsverfahren eines Leistungsmoduls gemäß einer Ausführungsform (a) das Anbringen eines Halbleiter-Chips auf einem Substrat, das mit einem Verdrahtungsabschnitt versehen ist, wobei der Halbleiter-Chip eine Hauptfläche und eine Rückfläche enthält und mit einer Stirnflächenelektrode versehen ist, die an der Hauptfläche ausgebildet ist und einen Al-Legierungs-Film enthält, der ein Metall mit hohem Schmelzpunkt enthält, und (b) das elektrische Verbinden der Stirnflächenelektrode des Halbleiter-Chips und des Verdrahtungsabschnitts des Substrats durch ein leitfähiges Element. Hier enthält der Al-Legierungs-Film der Stirnflächenelektrode des Halbleiter-Chips einen säulenförmigen Al-Kristall, der sich entlang einer Dickenrichtung des AI-Legierungs-Films erstreckt.In addition, a manufacturing method of a power module according to an embodiment includes (a) mounting a semiconductor chip on a substrate provided with a wiring portion, the semiconductor chip including a main surface and a back surface and provided with an end surface electrode attached to the substrate Main surface is formed and contains an Al alloy film containing a high melting point metal, and (b) electrically connecting the end surface electrode of the semiconductor chip and the wiring portion of the substrate with a conductive member. Here, the Al alloy film of the end surface electrode of the semiconductor chip includes a columnar Al crystal extending along a thickness direction of the Al alloy film.
Es wird eine Erklärung über eine erhaltene Wirkung durch den repräsentativen Überblick in der in dieser Anmeldung offenbarten Erfindung einfach gegeben, wobei die folgende Wirkung erhalten wird.An explanation of an effect obtained by the representative overview in the invention disclosed in this application is simply given to obtain the following effect.
Die Bondfestigkeit zwischen der Stirnflächenelektrode des Halbleiter-Chips und des Drahtes ist vergrößert, so dass es möglich ist, die Lebensdauern des Halbleiter-Chips und des Leistungsmoduls bei einer Leistungszyklusbewertung zu verlängern.The bonding strength between the end surface electrode of the semiconductor chip and the wire is increased, so that it is possible to extend the lifetimes of the semiconductor chip and the power module in a power cycle evaluation.
Figurenlistelist of figures
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1 ist eine Draufsicht, die ein Beispiel einer Konfiguration eines Halbleiter-Chips gemäß einer Ausführungsform der Erfindung veranschaulicht;1 FIG. 10 is a plan view illustrating an example of a configuration of a semiconductor chip according to an embodiment of the invention; FIG. -
2 ist eine Draufsicht, die ein Beispiel einer Konfiguration veranschaulicht, in der eine Elektrode aus dem in1 veranschaulichten Halbleiter-Chip entnommen ist;2 FIG. 10 is a plan view illustrating an example of a configuration in which an electrode is removed from the in FIG1 taken from the illustrated semiconductor chip; -
3 ist eine Querschnittsansicht, die einen entlang einer LinieA-A der in2 veranschaulichten Struktur genommenen Abschnitt in einem vergrößerten Maßstab veranschaulicht;3 is a cross-sectional view, one along a lineAA the in2 illustrated structure illustrated on an enlarged scale; -
4 ist eine Querschnittsansicht, die einen entlang einer LinieB-B der in2 veranschaulichten Struktur genommenen Abschnitt in einem vergrößerten Maßstab veranschaulicht;4 is a cross-sectional view, one along a lineBB the in2 illustrated structure illustrated on an enlarged scale; -
5 ist eine vergrößerte Querschnittsansicht, die ein Beispiel der Hauptteile der in4 veranschaulichten Struktur veranschaulicht;5 FIG. 16 is an enlarged cross-sectional view showing an example of the main parts of FIGS4 illustrated structure illustrates; -
6 ist eine schematische graphische Darstellung, die eine Struktur gleich nach dem Sputtern eines Al-Legierungs-Films der in5 veranschaulichten Elektrode veranschaulicht;6 FIG. 12 is a schematic diagram showing a structure just after sputtering an Al alloy film of the type shown in FIG5 illustrated electrode illustrates; -
7 ist eine schematische Ansicht, die eine Struktur nach dem Erwärmen des Al-Legierungs-Film der in6 veranschaulichten Elektrode veranschaulicht;7 FIG. 12 is a schematic view showing a structure after heating the Al alloy film of FIG6 illustrated electrode illustrates; -
8 ist eine graphische Darstellung, die ein Weitwinkel-Röntgenbeugungsergebnis des Al-Legierungs-Films veranschaulicht, wenn er bei Zimmertemperatur in der Elektrode der in6 veranschaulichten Struktur gebildet wird;8th Fig. 12 is a graph illustrating a wide-angle X-ray diffraction result of the Al alloy film when it is heated at room temperature in the electrode of the in6 illustrated structure is formed; -
9 ist eine graphische Darstellung, die ein Weitwinkel-Röntgenbeugungsergebnis des Al-Legierungs-Films veranschaulicht, wenn er bei einer hohen Temperatur in der Elektrode der in6 veranschaulichten Struktur gebildet wird;9 Fig. 12 is a graph illustrating a wide-angle X-ray diffraction result of the Al alloy film when exposed to the high-temperature X-ray diffraction result in theelectrode 6 illustrated structure is formed; -
10 ist eine graphische Darstellung, die eine TEM-Photographie der Struktur des Al-Legierungs-Films nach einem Leistungszyklustest in der Elektrode des Halbleiter-Chips gemäß der Ausführungsform der Erfindung veranschaulicht;10 Fig. 12 is a graph illustrating a TEM photograph of the structure of the Al alloy film after a power cycle test in the electrode of the semiconductor chip according to the embodiment of the invention; -
11 ist eine graphische Darstellung, die eine TEM-Photographie einer säulenförmigen Kristallstruktur des AI-Legierungs-Films nach dem Leistungszyklustest in der Elektrode des Halbleiter-Chips gemäß der Ausführungsform der Erfindung veranschaulicht;11 Fig. 12 is a graph illustrating a TEM photograph of a columnar crystal structure of the Al alloy film after the power cycle test in the electrode of the semiconductor chip according to the embodiment of the invention; -
12 ist eine Querschnittsansicht, die ein Beispiel einer Struktur eines Leistungsmoduls gemäß der Ausführungsform der Erfindung veranschaulicht;12 FIG. 10 is a cross-sectional view illustrating an example of a structure of a power module according to the embodiment of the invention; FIG. -
13 ist eine Querschnittsansicht, die die Hauptteile der Struktur des Leistungsmoduls gemäß der Ausführungsform der Erfindung teilweise veranschaulicht;13 Fig. 12 is a cross-sectional view partially illustrating the main parts of the structure of the power module according to the embodiment of the invention; -
14 ist ein Ablaufplan, der ein Beispiel eines Herstellungsverfahrens des in12 veranschaulichten Leistungsmoduls veranschaulicht;14 FIG. 13 is a flowchart showing an example of a manufacturing process of the in12 illustrated power module illustrates; -
15 ist eine graphische Darstellung, die ein Ergebnis des Leistungszyklustests des Leistungsmoduls gemäß der Ausführungsform der Erfindung veranschaulicht;15 Fig. 12 is a graph illustrating a result of the power cycle test of the power module according to the embodiment of the invention; -
16 ist eine Querschnittsansicht, die die Hauptteile einer Struktur eines Leistungsmoduls gemäß einer Modifikation der Ausführungsform der Erfindung teilweise veranschaulicht;16 Fig. 12 is a cross-sectional view partially illustrating the main parts of a structure of a power module according to a modification of the embodiment of the invention; -
17 ist eine Seitenansicht, die ein Eisenbahnfahrzeug teilweise veranschaulicht, in dem ein Inverter, der mit dem Halbleiter-Chip gemäß der Ausführungsform der Erfindung versehen ist, angebracht ist; und17 Fig. 13 is a side view partially illustrating a railway vehicle in which an inverter provided with the semiconductor chip according to the embodiment of the invention is mounted; and -
18 ist eine Draufsicht, die ein Beispiel einer inneren Konfiguration des Inverters veranschaulicht, der in dem in17 veranschaulichten Eisenbahnfahrzeug installiert ist.18 FIG. 10 is a plan view illustrating an example of an internal configuration of the inverter shown in FIG17 illustrated railway vehicle is installed.
BESCHREIBUNG DER BEVORZUGTEN AUSFÜHRUNGSFORMENDESCRIPTION OF THE PREFERRED EMBODIMENTS
Zuerst wird die Struktur des Halbleiter-Chips dieser Ausführungsform unter Verwendung der
Ein Halbleiter-Chip
Dann ist ein Abschlussbereich
Wie in der Draufsicht, aus der die in
Zusätzlich wird in der in
Als Nächstes wird eine Beschreibung über eine Querschnittsstruktur der Hauptteile des Halbleiter-Chips
Dann sind als eine Stirnflächenelektrode
Hier ist die Gate-Elektrode
Wie in
Das heißt, die mehreren Transistoren
Zusätzlich veranschaulicht die Struktur nach
In dem Halbleiter-Chip
Hier ist das Metall mit hohem Schmelzpunkt z. B. irgendeines aus Ta, Nb, Re, Zr, W, Mo, V, Hf, Ti, Cr und Pt. In dieser Ausführungsform wird ein Fall, in dem der Al-Legierungsfilm
Als Nächstes ist
Wie oben beschrieben worden ist, ist der Al-Legierungsfilm
Dann enthält, wie in den
Ferner befindet sich der in
Hier ist
Wie in den
Zusätzlich ist
Wie in
Zusätzlich kann der säulenförmige Al-Kristall
Gemäß dem Halbleiter-Chip
Selbst wenn durch die Wärmebeanspruchung von einem Draht eine Scherung des Al-Kristalls oder ein Riss auftreten, kann bei dieser Konfiguration das Wachstum der Kristallscherung und des Risses entlang einer horizontalen Richtung (einer Oberflächenrichtung der Stirnflächenelektrode
Im Ergebnis ist eine Metallermüdung schwierig zu verursachen und ist die Bondfestigkeit zwischen der Stirnflächenelektrode
Zusätzlich enthält die Stirnflächenelektrode
In dieser Weise ist an der Stirnflächenelektrode
Ein Leistungsmodul
Es wird die Konfiguration des Leistungsmoduls
Dann ist jeder der mehreren Halbleiter-Chips
Zusätzlich ist jeder der mehreren Halbleiter-Chips
Ferner ist jedes der mehreren isolierenden Substrate
Zusätzlich ist jedes der mehreren isolierenden Substrate
Zusätzlich sind eine Cu-Sammelschiene (ein P-Hauptanschluss) 6, eine Cu-Sammelschiene (ein N-Hauptanschluss) 7 und eine Cu-Sammelschiene (ein AC-Hauptanschluss) 8 als die Leitungsanschlüsse in dem Leistungsmodul
Dann sind die Teile (die inneren Abschnitte) der mehreren isolierenden Substrate
Ferner ist ein Harz
Ferner sind die anderen Teile der Cu-Sammelschienen
Hier veranschaulicht
Dann ist das isolierende Substrat
Zuerst wird der Halbleiter-Chip
Der Halbleiter-Chip
Als Nächstes wird im Schritt
Nach der Chip-Befestigung wird ein im Schritt
Ausführlich wird in jedem der mehreren Halbleiter-Chips
Nach dem Drahtbonden wird ein im Schritt
Nach dem Bonden des isolierenden Substrats wird ein im Schritt
Nach dem Zwischensubstrat-Drahtbonden wird eine im Schritt
Nach der Gehäusebefestigung wird ein im Schritt
Als Nächstes werden die Wirkungen des Leistungsmoduls
Gemäß
Mit anderen Worten, in dem in dem Leistungsmodul
Bei dieser Konfiguration kann das Wachstum der Kristallscherung und des Risses entlang einer horizontalen Richtung (einer Oberflächenrichtung der Stirnflächenelektrode
Im Ergebnis ist es schwierig, eine Metallermüdung zu verursachen, wobei die Bondfestigkeit zwischen der Stirnflächenelektrode
Weil ein gesintertes Metall, wie z. B. das gesinterte Cu
Als Nächstes wird eine Modifikation dieser Ausführungsform beschrieben.
In der Modulstruktur der in
Bei dieser Konfiguration kann die Bondfestigkeit zwischen dem Al-Draht
Zusätzlich ist in der Modulstruktur der in
Bei dieser Konfiguration kann sogar in der Drain-Elektrode
Im Ergebnis ist es schwierig, eine Metallermüdung zu verursachen, wobei die Bondfestigkeit der Drain-Elektrode
Zusätzlich ist in der in
Bei dieser Konfiguration kann eine Bondkraft bezüglich des gesinterten Cu
Hier wird die Beschreibung über eine Anwendung gegeben, bei der ein Invertermodul
Ein Inverter (eine Leistungssteuervorrichtung) kann z. B. angewendet werden, um einen Dreiphasenmotor in einem in
Wie in
Weil das Invertermodul
In dieser Weise ist der Inverter
Bis jetzt ist die durch den Erfinder implementierte Erfindung spezifisch auf der Grundlage der Ausführungsformen beschrieben worden. Die Erfindung ist jedoch nicht auf die oben beschriebenen Ausführungsformen eingeschränkt, sondern es können verschiedene Modifikationen vorgenommen werden. Die Ausführungsformen sind z. B. in einer deutlich verständlichen Weise für die Erfindung beschrieben, wobei folglich die Erfindung nicht notwendigerweise alle oben beschriebenen Konfigurationen bereitstellt.Hitherto, the invention implemented by the inventor has been described specifically based on the embodiments. However, the invention is not limited to the above-described embodiments, but various modifications may be made. The embodiments are z. Thus, the invention does not necessarily provide all of the configurations described above, for example, in a clearly understandable manner for the invention.
Zusätzlich können einige Konfigurationen einer bestimmten Ausführungsform durch die Konfigurationen einer weiteren Ausführungsform ersetzt werden, wobei die Konfiguration der anderen Ausführungsform außerdem zu der Konfiguration einer bestimmten Ausführungsform hinzugefügt werden kann. Ferner können Ergänzungen, Auslassungen und Ersetzungen an einigen Konfigurationen jeder Ausführungsform unter Verwendung anderer Konfigurationen ausgeführt werden. Während die jeweiligen Elemente und die relativen Größen in den Zeichnungen vereinfacht und idealisiert sind, um das Verständnis der vorliegenden Erfindung zu unterstützen, kann die Struktur ferner in der Praxis eine kompliziertere Form aufweisen.In addition, some configurations of a particular embodiment may be replaced by the configurations of another embodiment, and the configuration of the other embodiment may be added to the configuration of a particular embodiment as well. Further, additions, omissions, and substitutions may be made to some configurations of each embodiment using other configurations. Furthermore, while the respective elements and the relative sizes in the drawings are simplified and idealized to aid in understanding the present invention, the structure may in practice have a more complicated shape.
Das Leistungsmodul
Zusätzlich ist ein an den Al-Legierungs-Film
Zusätzlich ist der Halbleiter-Chip
Zusätzlich ist der Halbleiter-Chip
ZITATE ENTHALTEN IN DER BESCHREIBUNG QUOTES INCLUDE IN THE DESCRIPTION
Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.
Zitierte PatentliteraturCited patent literature
- JP 2000228402 A [0004]JP 2000228402 A [0004]
- JP 2008177378 A [0005]JP 2008177378 A [0005]
- JP 2012243876 A [0006]JP 2012243876 A [0006]
- JP 2016219531 A [0006]JP 2016219531 A [0006]
Claims (15)
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JP2017-221869 | 2017-11-17 | ||
JP2017221869A JP6847020B2 (en) | 2017-11-17 | 2017-11-17 | Semiconductor chips and power modules and their manufacturing methods |
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DE102018218055A1 true DE102018218055A1 (en) | 2019-05-23 |
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Citations (4)
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JP2000228402A (en) | 1999-02-05 | 2000-08-15 | Hitachi Ltd | Semiconductor device |
JP2008177378A (en) | 2007-01-19 | 2008-07-31 | Hitachi Ltd | Semiconductor device and its manufacturing method |
JP2012243876A (en) | 2011-05-17 | 2012-12-10 | Kobe Steel Ltd | SEMICONDUCTOR DEVICE Al ALLOY FILM |
JP2016219531A (en) | 2015-05-18 | 2016-12-22 | 株式会社神戸製鋼所 | Al ALLOY FILM FOR POWER SEMICONDUCTOR ELEMENT |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
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JP3283548B2 (en) * | 1991-09-04 | 2002-05-20 | 株式会社リコー | Electrode for ultrasonic wire bonding |
JP3438945B2 (en) * | 1993-07-27 | 2003-08-18 | 株式会社神戸製鋼所 | Al alloy thin film |
JP5181462B2 (en) * | 2006-10-31 | 2013-04-10 | 富士ゼロックス株式会社 | Semiconductor device and manufacturing method thereof |
JP5334601B2 (en) * | 2009-01-21 | 2013-11-06 | 株式会社東芝 | Semiconductor light emitting diode element and semiconductor light emitting device |
DE102010044709B4 (en) * | 2010-09-08 | 2015-07-02 | Vincotech Holdings S.à.r.l. | Power semiconductor module with metal sintered connections and manufacturing process |
JP6617546B2 (en) * | 2015-12-11 | 2019-12-11 | 富士電機株式会社 | Semiconductor device and manufacturing method of semiconductor device |
-
2017
- 2017-11-17 JP JP2017221869A patent/JP6847020B2/en active Active
-
2018
- 2018-10-05 US US16/153,251 patent/US10522638B2/en active Active
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Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2000228402A (en) | 1999-02-05 | 2000-08-15 | Hitachi Ltd | Semiconductor device |
JP2008177378A (en) | 2007-01-19 | 2008-07-31 | Hitachi Ltd | Semiconductor device and its manufacturing method |
JP2012243876A (en) | 2011-05-17 | 2012-12-10 | Kobe Steel Ltd | SEMICONDUCTOR DEVICE Al ALLOY FILM |
JP2016219531A (en) | 2015-05-18 | 2016-12-22 | 株式会社神戸製鋼所 | Al ALLOY FILM FOR POWER SEMICONDUCTOR ELEMENT |
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US20190157412A1 (en) | 2019-05-23 |
JP2019096643A (en) | 2019-06-20 |
JP6847020B2 (en) | 2021-03-24 |
US10522638B2 (en) | 2019-12-31 |
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